Age to work at a field?

I'm looking for owners opinions: How old do you have to be to work at a field? I'm 14 and I think it would be awesome. Hell, at my local field one of the refs is 13. So what do you guys think? BTW, if any field owners in the Southeast PA region are looking for some help with anything, send me a PM.

**** iim 12 n i get paid in paint if i reff allday or clean up the paint(indoor field) then i get a case n i jus turn around and sell it 50 dollars a day is better then workin at mcdonalds n i love it so its kick ***

**** iim 12 n i get paid in paint if i reff allday or clean up the paint(indoor field) then i get a case n i jus turn around and sell it 50 dollars a day is better then workin at mcdonalds n i love it so its kick ***